Bactris brongniartii Mart.
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Authority
Mori, S. A., et al. 1997. Guide to the vascular plants of central French Guiana: Part 1. Pteridophytes, gymnosperms, and monocotyledons. Mem. New York Bot. Gard. 76: 1-422.
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Family
Arecaceae
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Scientific Name
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Description
Species Description - Medium-sized, multi-stemmed, colonial plants, 2-8 m X 3-5 cm, with generally >5 trunks, the internodes 4-15 cm long, densely armed with rings of slightly flattened, black or brownish, retrorse spines 0.5-7 cm long. Leaves 6-10, erect; sheath 30-70 cm long, green to yellowish brown, densely armed with flattened, yellowish spines 0.5-4 cm long; petiole 30-120 cm long, green, terete, slightly canaliculate above, armed with flattened, pale yellow, brown-tipped spines to 8 cm long; rachis 1.1-2 m long, armed with same type of spines as petiole; blade ragged, pinnate, with 15-37 pinnae per side; pinnae straight, oblanceolate, slightly coriaceous, 40-85 X 2-6 cm, oriented in several planes and borne in 5-7 groups of 2-9; segments of apical pair often wider (±4-10 cm) and deeply toothed at tip. Inflorescences 1 or 2, interfoliar, lax, ± horizontally oriented, then drooping when fruiting; peduncle arched, 25-45 cm long, green, usually prickly in the distal part; prophyll 10-35 cm long, flat, sometimes prickly at tip; peduncular bract straight, fusiform, 40-70 cm long, brown, with scattered, often flattened, yellowish or pale brown spines 1-2 cm long; rachis 5-10 cm long, bearing 10-25 pale green rachillae 12-18 cm long. Fruits globose, glabrous, 12-15 mm black to purplish black at maturity.
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Distribution
Fl (Nov-Feb), fr (Mar-Sep); growing in periodically inundated places along streams, in half shade or in full light, known only from Crique Cochon in the vicinity of Saul.
French Guiana South America|